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Monster Sunspot Fires Off Powerful Solar Flares

The upper left corner of this image of the sun shows the biggest and most complex sunspot visible on the sun as of May 9, 2012. It has produced 7 M-class flares so far, but has not produced any coronal mass ejections that could cause geomagneti

Spectacular solar storms

January 2, 2013

See stunning photos of solar storms.